#include <stdio.h>
#include <stdlib.h>
int main()
{
	FILE* pf = fopen("aaa.txt","w");
	if(pf == NULL)
	{
		perror("fopen:");
		return 1;
	}
//	const char* str = "aaaaaaaaaaaaaaaaaaaaaa\n";
//	fputs(str,pf);
	fclose(pf);
	return 0;
}
